JP3072604U - Elevating devices for rudder shafts, propeller shafts and thruster shafts of ships - Google Patents

Abstract

(57) [Abstract] [Problem] To move a rudder shaft, a propeller shaft, a thruster shaft, and the like in a small boat, a fishing boat, a leisure boat, etc. in an up-down direction, it is easily mounted, compact, and does not require human power and handling operation. Provision of equipment such as SOLUTION: A cylindrical body is rotatably arranged at an arbitrary angle in a horizontal direction via a substrate receiver with respect to a support leg, and a pair of grooved rollers is opposed to a central portion of the rotatable cylindrical body. One roller is to be driven to rotate by a drive roller, while the other is to be moved by a push bolt toward the drive roller so as to reduce the distance between the drive rollers. Between the two grooves, the rudder shaft, the propeller shaft, the thruster shaft, and the like are held up and down.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a lifting device such as a rudder shaft, a propeller shaft and a thruster shaft of a ship.

[0002]

[Prior art]

 When vertically moving the rudder axis, propeller axis, thruster axis, etc. of small boats, fishing boats, leisure boats, etc., hold them with ropes, connecting rods and indirect supports, etc. This is performed using a power suspension machine or the like.

[0003]

[Problems to be solved by the invention]

 In the above, the human power is limited in ability, and the workability is poor and dangerous. On the other hand, the power suspension machine has a problem that the equipment is large and requires a large space, and the equipment cost is increased. The present invention has been made in view of the above problems, and has as its object to provide a device which can be easily mounted in a narrow place with a simple configuration, and which is compact and extremely easy to handle.

[0004]

[Means for Solving the Problems]

 The feature of the present invention is that the cylindrical body is rotatably arranged at an arbitrary angle in the horizontal direction via the board receiver with respect to the support leg, and a pair of grooves is provided at the center of the rotatable cylindrical body. The rollers shall be opposed to each other, one of which shall be driven to rotate by the drive roller, and the other one shall be moved by a hydraulic cylinder toward the drive roller so as to reduce the distance between the opposing rollers. None, a structure in which a rudder shaft, a propeller shaft, a thruster shaft, or the like is sandwiched between the grooves of both rollers to move up and down. At this time, a board support for supporting the cylindrical body in a horizontal state is attached to the support leg so as to be capable of a fixed inclination angle.

[0005]

[Embodiment of the invention]

 FIG. 1 is an overall perspective view of the device of the present invention. In the drawing, reference numeral 1 denotes a board support, which is supported on a pair of supporting legs 2 and 2 'via bolts and nuts described later. Reference numeral 3 denotes a cylindrical body rotatably disposed on the substrate receiver 1. Reference numeral 4 denotes an L-shaped bracket integrally mounted on the cylindrical body. The L-shaped bracket is attached to the L-shaped vertical wall plate 4a. A pair of rollers are attached so as to sandwich the center hole p of the cylindrical body 3.

One of the pair of rollers is a drive roller 5, and 6 is a hydraulic motor with a speed reducer for the drive roller 5 attached to the opposite side of the wall plate 4 a. Reference numeral 7 denotes a driven roller, which is disposed so that the groove surfaces of the driven roller 7 and the drive roller 5 are opposed to each other in a vertical direction. In this case, the driven roller 7 is attached to the vertical wall plate 4a. With the push bolt 8 attached to the, the groove is moved for a certain distance so that the groove interval s between the two can be appropriately reduced. In this specific configuration, a support bolt 10 for supporting a bearing 9 of a driven roller 7 is inserted into a pair of upper and lower parallel slits 11 formed in a vertical wall plate 4a, and a nut is slidably provided on the rear side thereof. Shall be tightened. Reference numeral 12 denotes an auxiliary plate protruding horizontally from the upper edge of the vertical wall plate 4a partially toward the circular hole p of the cylindrical body 3, and includes, in the center, a rudder shaft, a propeller shaft, a thruster shaft, etc. Is provided with a circular hole k that allows the insertion.

Reference numeral 13 denotes locking means attached to the board receiver 1. That is, the rotation position when the cylindrical body 3 is appropriately rotated is fixed, and a locking plate 13a provided with a screw hole m at one end of the substrate receiver 1 is fixed upright. A handle 13b provided with a screw m to be screwed into the screw hole m is attached, and the screw n is advanced and retracted by the rotation of the handle 13b, thereby pressing the outer peripheral surface of the cylindrical body 3 at the tip of the screw n. The position of the body 3 is fixed.

In the present invention, the horizontal position of the board receiver 1 can be appropriately changed to a required inclination angle, and specifically, a pair of legs 2, 2 supporting the board receiver 1. Are formed on one end side of the ', and a fastening bolt 14 is inserted into each of the slits 2a and 2a' from the side of the substrate receiver 1, and a nut 15 is screwed on each surface side to stop. It is made to wear. Therefore, when tilting, the arc swings around the fixing point of the bolt 16 and the nut 17 on the other side as a fulcrum. The position can be fixed by inclining at an angle and tightening the nut 15 again in this state.

FIG. 2 is a diagram showing a use state of the above-described device of the present invention. Reference numeral 18 denotes a thruster shaft having a propeller blade g at a lower end, and 19 denotes a ship deck. As is clear from this figure, the thruster shaft 18 is sandwiched between the pair of opposing rollers 5 and 7. Specifically, the driven roller 7 is directed to the driving roller 5 by the operation of the push bolt 8. The thruster shaft 18 is sandwiched between the grooves s of the two rollers by moving the thruster shaft 18, and the shaft 18 is appropriately frictionally moved in the vertical direction by driving the electric motor 6 with a speed reducer of the driving roller 5. Can be done.

If the direction of the propeller blade g at the lower end of the thruster shaft 18 is to be changed, the handle 13b is turned counterclockwise to release the pressing force of the cylindrical body 3 by the screw n of the handle 13b. Thereafter, the cylindrical body 3 is appropriately rotated in a required direction, and when this is completed, the handle 13b is rotated clockwise to fix again. The thruster shaft is provided on the port side or starboard side of the ship, and is submerged in the sea when the ship changes direction to provide an auxiliary function for effective small turning. Therefore, during normal sailing, the boat is raised from the water to prevent running resistance.

In the embodiment described above, the direction of the propeller blade g of the thruster shaft 18 is changed by releasing the pressing and fixing of the thruster shaft 18 to the cylinder 3 and rotating the cylinder 3 as appropriate. However, as shown in FIG. 3 to be described later, the shaft itself may be rotated in a required fixed angle direction using a crank or a fluid cylinder. When the thruster shaft 18 is appropriately inclined to the required angle in the device of the present invention, the nut 15 is loosened at the support legs 2 and 2 'so that the board receiver 1 is moved along the slits 2a and 2a'. This is done by sliding as appropriate.

FIG. 3 shows an example of using the rudder shaft 20, and FIG. 4 shows an example of using the thruster shaft 21. In the drawings, reference numerals 22 and 23 denote a fluid cylinder and a crank for changing the required constant angle of the rudder shaft 20.

[0013]

[Effect of the invention]

 The present invention is configured as described above. Since the entire device is a box-shaped and compact configuration, it can be easily installed at any position on the deck without any hindrance. is there. Therefore, it is very easy to rotate the cylinder to an arbitrary angle position and to make the required constant inclination angle from the horizontal position, thereby enabling efficient boat maneuvering work. Is what can be done. Speaking of this in terms of thruster shafts, what used to be done manually by manually raising and lowering shafts and changing directions can now be performed quickly and accurately by mechanical work using simple and compact equipment that does not require human power. The above will be very effective.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a diagram showing a use state of the upper air device.

FIG. 3 is a use state diagram of another example.

FIG. 4 is a use state diagram of another example.

[Description of Signs] 1 Substrate receiver 2, 2 'support leg 3 Cylindrical body 4 Bracket 5 Drive roller 6 Electric motor with reduction gear 7 Follower roller 8 Push bolt 9 Bearing 11 Slit 12 Auxiliary plate 13a Lock plate 13b Handle 18 Thruster shaft 20 rudder shaft 21 propulsion wing m screw hole n screw rod p center hole g propeller blade

Claims (2)

[Utility model registration claims] 1. A cylindrical body is rotatably arranged at an arbitrary angle in a horizontal direction with respect to a support leg via a substrate receiver, and a pair of grooved rollers is provided at a central portion of the rotatable cylindrical body. The other one is to be driven to rotate by a drive roller, while the other is to be moved by a push bolt toward the drive roller so as to reduce the distance between the opposite sides. A lifting and lowering device for a rudder shaft, a propeller shaft, a thruster shaft, and the like of a ship, wherein a rudder shaft, a propeller shaft, a thruster shaft, or the like is sandwiched between grooves of a roller to ascend and descend. 2. A rudder shaft, a propeller shaft and a thruster of a ship according to claim 1, wherein a substrate support for supporting the cylindrical body in a horizontal state is attached to the support leg so as to be capable of a fixed inclination angle. Elevating devices such as shafts.